I know its been a bit since anyone responded with this, but i figured I'd throw in my 2 cents.. I have done a bit of work on dodge vans, and with the 318 and 360's the timing plate is seen from underneath, from the drivers side.. i'd say its at 4:30 to 5 o-clock if your looking at the front of the vehicle.. it makes since due to not having much room to get a timing light in there and getting a line of sight (I know this by placing a used 360 out of a truck in a van, the power steering bracket is right in the way).. Maybe the motor came from a van? Or the motor was rebuilt and they used a van timing cover??? I have not run into this in any other dodge, just the vans... Hope that helps...